A total of 100 patients with varicosis of lower limb veins were investigated with the help of distal ascending phlebography in horizontal, vertical and tilted positions. Considerable differences in x-ray images of musculi gastrocnemius and soleus (MGS) were noted. Four main types of MGS (conic, spindle-form, U-form, and balloon-like) were singled out. Correlation between muscular vein sizes and stages of varicosis was revealed. An important role of the pathology of muscular veins in dysfunction of the leg pump as one of the factors of pathogenesis of lower limb varicosis was confirmed.